This is just my opinion,not forcing it on anybody…
At night,we are supposed to think about that a bit,I learned.
Review the day in your mind,etc.If falling asleep exhausted,then can be done when traveling,waiting,etc.
Not to the point where it interferes with simcha,however–can’t get bogged down,just think enough to keep yourself in check.
Like reporting to your “internal mashgiach”,so to speak.
But DO NOT OVERDO it.People who go too far “get down”.
THOSE WHO DON’T DO IT AT ALL WILL NOT MAKE THE BEST USE OF OUR LIMITED TIME HERE IN THIS WORLD.–caps for emphasis,not shouting:)